How To Make Filter Sweeps On Serum

How to plow sampled waveforms into wavetables using Xfer Records' Serum

Most wavetable synths allow you import your own wavetables, but making them is usually a major chore. Not so with Serum, though, which gives yous all the tools you need to build, interpolate and tidy upward your own wavetables right within the instrument itself, based on a multifariousness of sources. Here's how information technology's washed…

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Step 1: Xfer Records Serum lets y'all plough audio samples, internal LFO shapes and even PNG files into wavetable oscillators. We'll start with an audio sample of a gnarly, modulated bass annotation. You'll desire to get WT Pos moving with an LFO to automatically sweep through the wavetable position.

Step two: Click and drag a sample onto Serum's Osc A display. As yous hover over it, several options appear - we'll driblet this sample onto the Import: Constant Framesize (Pitch Avg) selection, as our note has one consequent pitch. Serum now resynthesises the sound into the individual frames of a wavetable.

Step three: Click Osc A'due south pencil icon to pop open the Wavetable Editor. Along the bottom, we can meet Serum has divided the sample into 17 frames. The frame scanning is currently a bit 'rough', but there'south plenty we can do to smooth this out…

Step 4: A wavetable tin can contain up to 256 frames, so by selecting ane of the Morph options, Serum will fill in those actress frames, to shine the interpolation between them. You can likewise use other options like Procedure > X-Fade Edges to smoothen the interpolation.

Step 5: Other useful wavetable editing options are also available. Yous tin normalise the level of all frames for a more than consequent level throughout the wavetable, every bit well as remove flat or silent frames at the get-go and finish of the wavetable. Once washed, hitting Osc A's disk icon to salve your wavetable.

Step 6: Nosotros tin exaggerate our timbre-scanning movement by using the same modulator to influence complementary parameter changes across the synth - try hooking up your LFO shape to modify oscillator book, distortion amount, oscillator warp, onboard effects and more.

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